Inches to Millimeters conversion

Inches (″) to millimeters (mm) conversion calculator and how to convert.

Inches to millimeters conversion calculator

Enter the length in inches (″) and press the Convert button:

   
 
Millimeters result: mm
Meters+millimeters result:
m
mm
Calculation:  

mm to inches ►

How to convert inches to millimeters

1 inch is equal to 25.4 millimeters:

1″ = 25.4mm

The distance d in millimeters (mm) is equal to the distance d in inches (″) times 25.4:

d(mm) = d(″) × 25.4

Example

Convert 20 inches to millimeters:

d(mm) = 20″ × 25.4 = 508mm

Inches to millimeters conversion table

Inches (") Millimeters (mm)
0.01 ″ 0.254000 mm
1/64 ″ 0.396875 mm
1/32 ″ 0.793750 mm
1/16 ″ 1.587500 mm
0.1 ″ 2.540000 mm
1/8 ″ 3.175 mm
1/4 ″ 6.35 mm
1/2 ″ 12.7 mm
1 ″ 25.4 mm
2 ″ 50.8 mm
3 ″ 76.2 mm
4 ″ 101.6 mm
5 ″ 127.0 mm
6 ″ 152.4 mm
7 ″ 177.8 mm
8 ″ 203.2 mm
9 ″ 228.6 mm
10 ″  254.0 mm
20 ″ 508.0 mm
30 ″ 762.0 mm
40 ″ 1016.0 mm
50 ″ 1270.0 mm
60 ″ 1524.0 mm
70 ″ 1778.0 mm
80 ″ 2032.0 mm
90 ″ 2286.0 mm
100 ″ 2540.0 mm

 

mm to inches ►

 


See also

Write how to improve this page